274721087 has 4 divisors (see below), whose sum is σ = 274784736. Its totient is φ = 274657440.

The previous prime is 274721077. The next prime is 274721113. The reversal of 274721087 is 780127472.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 274721087 - 2²⁴ = 257943871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 274721087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274721047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24839 + ... + 34152.

It is an arithmetic number, because the mean of its divisors is an integer number (68696184).

Almost surely, 2^274721087 is an apocalyptic number.

274721087 is a deficient number, since it is larger than the sum of its proper divisors (63649).

274721087 is an equidigital number, since it uses as much as digits as its factorization.

274721087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63648.

The product of its (nonzero) digits is 43904, while the sum is 38.

The square root of 274721087 is about 16574.7122750291. The cubic root of 274721087 is about 650.0757994444.

The spelling of 274721087 in words is "two hundred seventy-four million, seven hundred twenty-one thousand, eighty-seven".